Machine for hulling oats.



No. 727,332. PATENTED MAY 5, 1903.

s. E. FIELD. MACHINE FOR HULLING OATS.

I APPLICATION FILED JULY 30, 1902.

N0 MODEL.

INVENTOR WI TNE SSE S:

A TTOHNE'YS.

PATENTEDIMAY 5, 1903.

S. E. FIELD.

MACHINE FOR HULLING OATS.

APPLIUATION FILED JULY 30, 1902- 2 SHEETS-SHEET 2.

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be otherwise strengthened, if desired, par- SAMUEL EDMONDS FIELD,

Patented May 5, 1903.

PATENT ()FFICE.

O F VICTORIA, CANADA.

MACHINE FOR'HULLING OATS.

SPECIFICATION forming part of Letters Patent No. 727,332, dated May 5, 1903.

Application filed July 30. 1902. Serial No. 117,657. (N0 de To all whom it may concern:

Be it known that LSAMUEL EDMoNDs FIELD, a subject of the King of Great Britain, and a resident of Victoria, in the Province of British Columbia and Dominion of Canada, have invented a new and Improved Machine for Hulling Oats, of which the following is full, clear, and exact description.

My invention relates to a machine for hull-- ing oats and other grain whereby the grain may be hulled without having to be previously kiln-dried or going through the usual process of grinding off the hull between millstones.

The purpose of my invention is to receive the oats in a hopper and guide the oats to rollers in such manner that the rollers will nip the heads of the cats and will squeeze out the greats, the groats falling within the machine, while the hulls pass through to the outside of the machine.

The invention consists in the novel construction and combination of the several parts, as will be hereinafter fully set forth, and pointed out in the claims.

Reference is to be had to the accompanying drawings,forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a side elevation of the machine. Fig. 2 is a front elevation'partly in section. Fig. 3 is a vertical transverse section through the hopper, a portion ofthe frame, and the shaker which receives the grain from the hopper; and Fig. 4'is a vertical section through the forward end portion of the frame, the nipping-rollers, and tension device therefor, and likewise a longitudinal section through one of thetubes employed to deliver the grain from the shaker to the nipping-rollers.

' The frame of the machine is preferably of greater length than width, and consists of corner-posts 10, connected at top by suitable side beams 11 and front and rear beams 11 and at the bottom by side beams 12 and front and rear beams 12"; but the said frame may ticularly by an intermediate transverse beam 13, located at the front, as is shown in Fig. 2, and a transverse vertical beam 14 is secured to the bottom side beams 12, as is shown in Fig. 1, the top of which vertical beam 14 is beveled downwardly in direction of the front and is provided with any suitable number of keepers 15, which keepers are usually in the form of staples, as is illustrated in Figs. 1 and 2; and, furthermore, in the construction of the frame a table 16 is secured to the upright or vertical beam 14, extending at an inclination downward from said beam to the forward corner-posts 10, to which latter the said table may be attached, if found desirable. Rearwardly-extending brackets 17 are attached to the forward corner-posts 10, and in said brackets a shaft 18 is journaled, andon the said shaft a hand-wheel 19 is secured at one side of the frame,as shown in Figs. 1 and 2.

This hand-wheel is peripherally grooved to receive a belt 20, which belt passes over the grooved periphery of a smaller wheel 21, secured upon a transverse shaft 22, journaled in brackets 23, forwardly extended from the rear posts 10 of the frame, as is shown in Fig. l; The wheel 21 is at one end of the shaft 22, and at the opposite end of said shaft a small pulley 23 is secured, over which a belt 24 is passed. The said belt 24is carried likewise over a larger pulley 25, secured upon one end of a shaft 26, mounted to turn at the lower portion of the forward end of the frame A, and on this shaft 26 a nipping-roller 27 is secured, being turned by said shaft. The shaft 26 is journaled in boxes 28, preferably loosely placed in vertical slots 29, made in the front corner-posts l0,as-is shown in Fig. 4. Asecond nipping-roller 30 is located above and engages with the lower nipping-roller 27, as is showuin'Figs. 2 and 4. The trunnions 0f the said upper roller 30 are journaled in boxes 29, mounted to slide in the aforesaid slots 29 of the front corner-posts 10, so that the upper roller 30 may be adjusted as desired relative to the lower roller 27. The rollers are preferably made of milled steel or emery. A cross-bar 31 is loosely mounted in the aforesaid slots 29, the ends of which cross-barengage with the upper ends of the boxes 29 for the upper nipping-roller 30, and the upper roller 30 is held in adjusted position through the medium of the said crossbar 31, which is an adj usting-bar, and a bow-' the front intermediate cross-bar 13 to an en-, gagement with the said spring 32.

' At the upper rear portion of the frame A a superstructureBis erected. This superstructure extends from side to side of the main frame A and consists of front and rear sections 34 and end sections 35, the bottom of the superstructure being open. At the upper portion of this superstructure B a shaker C is located adapted to have horizontal reciprocating movement in the said superstructo re B, as is shown particularly in Fig. 3. This shaker 0 consists of front and rear members 35*, end members 36, and a bottom member 37, which extends beyond the front and the rear members and travels in grooves made in the front and rear members 34 of the said superstructure. In the further construction of the said shaker O a U-shaped bottom 38 is provided, which is preferably made of metal and is adapted to receive the grain. The bottom 38 or receiving member of the shaker extends from end to end thereof and engages with the bottom section 37, and in the said U-shaped receiving-section 38 of the shaker apertures 39 are produced at any desired distance apart-for example, one inch apart which register with countersunk apertures 39 in the bottom member 37 of the shaker, as is shown in Fig. 3. At each opening 39 the upper end of a tube 40 is secured, preferably, by means of flanges 41, formed on said tubes and screwed or otherwise attached to the under surface of the bottom section 37 of said shaker. These tubes 40 extend down ward through the bottom of the superstructure B and through the keepers 15 on the vertical beam or partition 14, as is shown in Figs. 1 and 2, and thence with a suitable incline directly to the space between the two nippingrollers 27 and 30, as is shown in Figs. 1 and 4. The forward lower portions of the tubes 40, which are adapted to conduct the grain to the nipping-rollers, are passed through suitable openings in a cross-bar 42, loosely mounted on the inclined table 16, so that as the shaker O is laterally reciprocated, and consequently the upper portions of the tubes 40 are thus reciprocated, the lower portions of the tubes wili be simultaneously laterally reciprocated, but to a less extent, and at the same time the forward lower or delivery ends of the tubes 40 will be kept in proper relation to each other, the object thus sought to be obtained being to free the groats, as if the tubes were held stationary the oats would be forced back into the tubes and choke the same.

In order that the delivery-tubes 40 may be adjusted to and from the nipping-rollers 27 and 30 as occasion may demand, each of said tubes 40 at its lower or forward end is provided with a telescopic section 43, adapted to slide upon the exterior of the said tubes 40, as is shown in Figs. land 4, and as the added sections 43 for the tubes 40 are of greater interior diameter than the interior diameter of said tubes the exit for the grain from said tubes to the nipping-rollers is rendered free and comparatively easy.

A hopper 45 is suitably supported on the superstructure B at the rear portion of the skaker O, and the lower or contracted portion' of the hopper 45 is provided with a longitudinal opening 46 in communication with the receiving-section 38 of the shaker G, as is best shown in Fig. 3. In order that the grain in the hopper 45 shall not become clogged, pins 47 are secured to the shaker O, which pins extend out through the openings 46 in the hopper as far as may be found desirable into the hopper-chamber.

As the openings in the shaker 0 leading to the delivery-tubes 40 are more or less countersunk, the grain will drop from the said shaker into the said tubes with the heavier end downward, and owing to the reciprocating movement of the delivery-tubes 40 the grain will rapidly pass down through said tubes and will be delivered butt or heavier end forward to the nipping-rollers 27 and 30,

and as said rollers receive the grain between them they remove the hulls from the grain,-

carrying the hulls outward, while the groats or body of the grain perfectly freed from the hulls will drop upon the table 16 and find its way to a-point at the bottom portion of the frame A within the frame or into a receptacle placed to receive the groats.

A horizontal reciprocating movement is imparted to the shaker 0 through the medium of an elbow-lever 48, connected with the outer end of the shaker, preferably through the medium of a link 49, and said elbow-lever 48 is fulcrumed upon an upright 50, secured to the offset port-ion 51 from the side of the frame A, as is shown best in Fig. 2. The horizontal or lower member of the elbow-lever 48 is provided with a slot 52, which receives a pin at the upper end of a pitman 53, and the lower end of the said pitman is connected with a crank-arm 54, secured at one end to the shaft 22 at the rear portion of the machine.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. In a machine for hulling grain, the combination of a main frame, a hopper mounted thereon, a shaker in receiving communication with the hopper, a power-shaft journaled in said frame, means actuated from the powershaft for reciprocating the shaker, said means comprisingabell-crankleverpivotallymounted on the frame and a rod connecting the lever with the power-shaft, adjustable stripping-rollers located one above the other, supports for said rollers, and movable deliverytubes for the grain, connected with the lower portions of the shaker at their upper ends and in communication with the interior of the shaker, the lower ends of the delivery-tubes being arranged opposite and adjacent to the space between the said rollers, substantially as set forth.

frame and connected with the shaker and a rod connected with thepower-shaftand loosely jointed with the lever, adjustable strippingrollers mounted in said frame, means forimparting a rotary motion to said rollers simul-' taneously with the actuation of the shaker,

and delivery-tubes communicating with said shaker, the lower ends of said tube being held to reciprocate near said rollers, substantially as set forth.

3. In a machine for hulling grain, a main frame, a shaker thereon, rollers journaled in said frame, delivery-tubcs leading from the shaker to the rollers, and means for recipro-' eating saidtubes, substantially as set forth 4. In a machine for hulling grain, a main frame, a shaker thereon, rollers journaled in said frame, delivery-tubes leading from the shaker tothe rollers, means for supporting the delivery-tubes, and means for reciprocating said tubes, the supports being so arranged that the upper portions of said tubes adja-: cent to the shaker will be reciprocated to a greater extent than the ends of the tubes near the rollers, substantially as set forth.

5. In a machine for hulling grain, a main. frame, a shaker comprising a main portion' and a receiving portion, said receiving portion having orifices therein adapted to register with similar orifices in the bottom of the main portion, rollers journaled in said main' frame, and deliverytubes secured in alinement with the orifices of the main-portion of the shaker and leading to a position adjacent to said rollers,.and means for reciprocating the shaker, whereby said tubes will be caused to reciprocate along their entire lengths, substantially as setforth.

6. A machine forhulling grain, comprising a main frame, nipping-rollers, a shaker, delivery-tubes leading from said shaker to a point adjacent to the nipping-rollers, and means for-imparting a rotary movement to said rollers and at the same time simultaneously reciprocating the portions of the delivery-tubes adjacent to the shaker, to a relatively greater extent than the portions of the tubes near said rollers, substantially as set forth.

7. 'A machine for hulling grain, comprising a main frame, nipping-rollers journaled there- 'in, a shaker mounted thereon, delivery-tubes leading from said shaker to the end rollers, means for reciprocating said delivery-tubes, "and supportingbars on the main frame for the delivery-tubes, the construction and arran gement of said sup porting-bars being such that when the delivery-tubes are reciprocated the upper portions adjacent to the shaker will be moved to a relatively greater extent than the lower portions adjacent to the nipping-rollers, substantially as set forth.

8. In a machine for hulling oats and other .grain, a frame, a hopper secured upon said frame, a shaker held to reciprocate beneath the hopper and receive grain therefrom, rollers locatedin adjustable yet close relation to each other and journaled in the said frame, a tension device for the rollers, delivery-tubes in communication at one end with the interior of the shaker, fulcrumed between their ends, the lower ends of the said delivery-tubes being provided with adjustable sections, which ad -justable sections are located opposite the spaces between the said rollers, means, su bstantially as described, for guiding the lower ends of the said delivery-tubes, and means, substantially as described, for imparting a horizontal vibratory movement to the shaker and simultaneous and rotary movement to the rollers, for the-purpose set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

EDMONDS FIELD. 

